LiftMaster 41D4674-1G Receiver Logic Board Assembly

The LiftMaster 41D4674-1G Receiver Logic Board Assembly is an OEM replacement control board for select LiftMaster and Chamberlain residential garage door openers. This board is the central controller that manages the opener’s radio reception, motor drive logic, courtesy light, safety sensor inputs, limits, and force settings. Replacing a failed logic board can restore normal operation when symptoms include non-responsive remotes or keypads, intermittent operation, flashing diagnostic codes on the opener head, or failure to recognize the safety reversing sensors. For best results, match the exact part number on your existing board to 41D4674-1G and confirm compatibility with your opener’s model and learn-button color through the manufacturer’s documentation.

Installation typically involves disconnecting power, removing the old control board, transferring all wire harnesses and terminal connections to the same positions on the new assembly, and then reprogramming accessories via the opener’s LEARN button. After replacement, set travel limits and force, reprogram remote controls and wireless keypads, and verify photo-eye alignment; perform a full UL 325 safety reversal test before returning the door to service. Compatibility for wireless accessories depends on the radio standard built into the opener (often identified by learn-button color), so ensure your remotes and keypads match the opener’s frequency/technology. This genuine receiver logic board is intended for residential operators only; consult the opener’s manual or LiftMaster support for model-specific guidance, firmware notes, and any required programming steps unique to your unit.